Combined muffler and spark arrestor



FIG. 1 is a perspective view of a combined muffler and spark arrestor showing my new design;

FIG. 2 is an end elevational view thereof;

FIG. 3 is a side elevational view thereof; and

FIG. 4 is an end elevational view thereof opposite to that shown in FIG. 2. 

The ornamental design for a combined muffler and spark arrestor, as shown. 